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Find Your Science at GSA
10 October 2012
GSA Release No. 12-73
Christa Stratton
Director of Education, Communication, & Outreach
Mega EarthCache logo
Dorset series-Berrow wayfarer
EarthCache event
EarthCache enthusiasts find and learn about amazing places all over the world. Photos provided by Gary Lewis, GSA's Director of Education & Outreach.

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International EarthCache Day Helps Kick-Off Earth Science Week

Boulder, CO, USA – The sixth annual International EarthCache Day returns on Sunday, 14 October, to help kick-off Earth Science Week 2012. The public is invited to join the Geological Society of America (GSA),, and the American Geosciences Institute (AGI) in exploring this exciting and educational Earth science experience.

International EarthCache Day is a time when EarthCache enthusiasts around the globe organize small gatherings where people learn about the Earth. On this day, EarthCache participants are also encouraged to visit EarthCache sites and introduce the EarthCache program to those who are not yet familiar with it. An EarthCache is a place that people can discover with a GPS device while participating in a “treasure hunt” called geocaching, a global game popularized by “The treasure you find at an EarthCache is a lesson about the Earth itself,” says EarthCache program director Gary Lewis of GSA, a longtime Earth Science Week partner.

EarthCache events are being held around the world on 14 October, in Germany, Canada, the United Kingdom, the United States, and elsewhere. For information about International EarthCache Day events, and for more details about EarthCache, visit,, or contact .

This year, International EarthCache Day follows on the heels of the highly successful First Annual International EarthCache Mega Event, which took place on 2 September 2012, in New Gloucester, Maine, USA. This event hosted over 700 participants from around the globe who came together to celebrate, learn more about, and advance the global EarthCache program. The Second Annual International EarthCache Mega Event is scheduled for 7 September 2013, in St. George, Utah, an area surrounded by wonderful red-rock geology and a number of great EarthCache sites. For information about this event, see

Earth Science Week is an annual event sponsored by AGI to expand public understanding and appreciation for the earth sciences and to encourage stewardship of the Earth. This year’s Earth Science Week will be 14–20 October. To learn more about Earth Science Week, visit

The American Geosciences Institute is a nonprofit federation of 50 geoscientific and professional associations that represents more than 250,000 geologists, geophysicists and other earth scientists. Founded in 1948, AGI provides information services to geoscientists, serves as a voice of shared interests in the profession, plays a major role in strengthening geoscience education, and strives to increase public awareness of the vital role the geosciences play in society's use of resources, resiliency to natural hazards, and interaction with the environment.

The Geological Society of America is a non-profit organization that provides access to elements that are essential to the professional growth of earth scientists at all levels of expertise and from all sectors: academic, government, business, and industry. The Geological Society's growing membership unites thousands of earth scientists from every corner of the globe in a common purpose to study the mysteries of our planet and share scientific findings.

Groundspeak, the makers of and the global geocaching game, is a privately held company whose mission is to inspire outdoor play using location-based technology. It is committed to: building location-based tools that inspire real world discovery and global play; providing and enhancing outdoor experiences; supporting parks and outdoor recreational areas; educating about GPS and other location-based technologies; and bringing online communities together in physical locations

The first EarthCache site was developed by Lewis in 2004 on a headland in New South Wales, Australia. It leads to evidence in the rocks of an ancient ice age and amazing fossils to discover. Since then over 23,000 sites have been placed by geocachers around the globe and a staggering 3,300,000 people have visited those sites to date. EarthCache discoveries lie on every continent, and accommodate every age and outdoor skill level. Earthcache sites are added on a daily basis and are listed at

For more information about EarthCache Day or for general program information, contact Gary Lewis at the address or phone number above.

EarthCache Day homepage:
EarthCache Day event listing on Facebook:
Geocaching homepage: